The massive crossover 3DS strategy RPG "Project X Zone" is coming to North America on June 25th.

Joystiq caught sight of the announcement over on the Namco Bandai official page touting the summer release. The Banpresto-Monolith Software collaboration brings together scores of characters and music from SEGA, Namco Bandai, and Capcom's decades of publishing history in a gigantic team-up to find the mysterious "Portalstone" which allows passage between universes. Didn't something like that figure into the main story of "Street Fighter X Tekken?"

This might not be a final date: neither Capcom nor SEGA have made the announcement and (not that this is ever an accurate measurement of things) the Amazon product page shows an August 31 release date.

Follow @MTVMultiplayer on Twitter and be sure to "like" us on Facebook for the best geek news about comics, toys, gaming and more! And don’t forget to follow our video gaming and TV writer @TheCharlesWebb.